From: Ido Schimmel <ido...@nvidia.com> Petr says:
The RED qdisc currently supports two qevents: "early_drop" and "mark". The filters added to the block bound to the "early_drop" qevent are executed on packets for which the RED algorithm decides that they should be early-dropped. The "mark" filters are similarly executed on ECT packets that are marked as ECN-CE (Congestion Encountered). A previous patchset has offloaded "early_drop" filters on Spectrum-2 and later, provided that the classifier used is "matchall", that the action used is either "trap" or "mirred", and a handful or further limitations. This patchset similarly offloads "mark" filters. Patch set overview: Patches #1 and #2 add the trap, under which packets will be reported to the CPU, if the qevent filter uses the action "trap". Patch #3 then recognizes FLOW_BLOCK_BINDER_TYPE_RED_MARK as a binder type, and offloads the attached filters similarly to _EARLY_DROP. Patch #4 cleans up some unused variables in a selftest, and patch #5 adds a new selftest for the RED "mark" qevent offload. Petr Machata (5): devlink: Add ecn_mark trap mlxsw: spectrum_trap: Add ecn_mark trap mlxsw: spectrum_qdisc: Offload RED qevent mark selftests: mlxsw: sch_red_core: Drop two unused variables selftests: mlxsw: RED: Add selftests for the mark qevent .../networking/devlink/devlink-trap.rst | 4 + .../net/ethernet/mellanox/mlxsw/spectrum.c | 2 + .../net/ethernet/mellanox/mlxsw/spectrum.h | 2 + .../ethernet/mellanox/mlxsw/spectrum_qdisc.c | 14 +++- .../ethernet/mellanox/mlxsw/spectrum_span.c | 16 ++++ .../ethernet/mellanox/mlxsw/spectrum_span.h | 1 + .../ethernet/mellanox/mlxsw/spectrum_trap.c | 9 ++ include/net/devlink.h | 3 + net/core/devlink.c | 1 + .../drivers/net/mlxsw/sch_red_core.sh | 84 ++++++++++++++++++- .../drivers/net/mlxsw/sch_red_ets.sh | 74 ++++++++++++++-- 11 files changed, 200 insertions(+), 10 deletions(-) -- 2.29.2
